The $900 pricetag might seem steep, but for Bratton's clients -- who spend hundreds of thousands of dollars on security systems -- it's worth it. It's certainly cheaper than designing and building their own monioring devices.

Trying to prove that you're a rich, boorish jerk? Apparently, there was an app for that. The $1,000 "I Am Rich" app -- which did nothing -- used to be the most expensive app, but was later pulled, Huff Po reports.